Home / 687,486.40-1,032,007.20-530,411.20

Finding the Fourth Proportional to 687,486.40, 1,032,007.20 and 530,411.20

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Solution

The fourth proportional to 687,486.40, 1,032,007.20 and 530,411.20 is: 796,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,486.40 : 1,032,007.20 = 530,411.20 : x
  2. Step 2: Convert to fraction form
    687,486.40/1,032,007.20 = 530,411.20/x
  3. Step 3: Cross multiply
    687,486.40x = 1,032,007.20 × 530,411.20
  4. Step 4: Simplify right side
    687,486.40x = 547,388,177,360.64
  5. Step 5: Solve for x
    x = 547,388,177,360.64/687,486.40
  6. Step 6: Final answer
    x = 796,216.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.